Add default access and secret key fallback for Hetzner S3

Updated the Hetzner S3 bucket creation task to use default access and secret keys if specific Hetzner keys are not provided.

Author: vitabaks

automation/roles/cloud_resources/tasks/hetzner.yml

@@ -448,15 +448,15 @@
       amazon.aws.s3_bucket:
         endpoint_url: "{{ hetzner_object_storage_endpoint }}"
         ceph: true
-        aws_access_key: "{{ hetzner_object_storage_access_key }}"
-        aws_secret_key: "{{ hetzner_object_storage_secret_key }}"
+        aws_access_key: "{{ hetzner_object_storage_access_key | default(default_access_key, true) }}"
+        aws_secret_key: "{{ hetzner_object_storage_secret_key | default(default_secret_key, true) }}"
         name: "{{ hetzner_object_storage_name }}"
         region: "{{ hetzner_object_storage_region }}"
         requester_pays: false
         state: present
-      register: s3_bucket_result
-      failed_when: s3_bucket_result.failed and not "GetBucketRequestPayment" in s3_bucket_result.msg
-      # TODO: https://github.com/ansible-collections/amazon.aws/issues/2447
+      vars:
+        default_access_key: "{{ pgbackrest_s3_key | default(wal_g_aws_access_key_id | default('')) }}"
+        default_secret_key: "{{ pgbackrest_s3_key_secret | default(wal_g_aws_secret_access_key | default('')) }}"
       when:
         - (pgbackrest_install | bool or wal_g_install | bool)
         - hetzner_object_storage_create | bool